The Goodies: mother in her bathing suit and dress. The baby cocoon-like tucked in and roaming free with nothing but a diaper. The pilot... smiling. The Baddies: the villagers and their worm/larva weird kids thingys... And the tall skinny man. His evil eyes (to the left) after he's found out about the missing baby.

A sketch of the mysterious Husband:

Also did a couple of early teasers I made back when the design and the story was entirely different from that of the finished film...